Unit4FindingyourwayThereisacageinthepicture.acageThecageisbeautiful.asnakealionatigeragiraffeanegganumbrellaanorangeanEnglishbook1.第一次提到某人或某物时。Ihaveabook.2.泛指某一类的人或物。Apandaisverylovely.判断一个单词用a还是用an，是根据其读音，而不是根据其首字母。以元音音素开头的词前用“an”，以辅音音素开头的词前”a“。如：anhour,anapple,anelephant,ausefulbook等。Look!Hereisapanda.Thepandaiseatingbamboo.Look!Hereisanapple.Theappleisred.1.指上文提到过的人或物。如：Lucyboughtanewbike,thebikeisgreen.2.世界上独一无二的事物。如：thesunthemoon3.谈到彼此都知道的人或事物。如：Openthedoor,please.4.序数词和形容词最高级前。如：Sheisalwaysthefirsttogettoschool.5.乐器名词前用。如：playthepianoplaytheviolin6.定冠词与形容词连用表示一类人，加在姓氏前面表示一家人。如：therich有钱人theyoung年青人7.某些专用名词和习惯用语中用定冠词。theGreatWallbytheway1.名词前已经有指示代词（this,that,these,those）、形容词性物主代词（my,his,our…）或名词所有格等限定词。2.表示语言、学科、三餐、球类运动、棋类运动的名词前。3.表示星期、月份、季节、某些节日的名词前。4.表示人名、国名、称呼语或头衔等专有名词前。5.某些固定短语中。bybike,bybus,atfirst,atwork,onfoot,gotoschool,gotobed,等。Millie:Let’sgotothePandaHousefirst.Daniel:Hereweare.Icansee(1)___pandathere.It’slyingonthegrass.Millie:Howcute!Ilovepandas.Look!There’s(2)____babypanda.It’ssosmall.aaDaniel:Yes.(3)_____babypandadoesn’tlooklikeitsmother.Millie:Nowlet’sgotoseesomelions.Daniel:Are(4)___lionsin(5)___openarea?Millie:No,theyaren’t.Theyarein(6)___verybigcage.ThetheanaDaniel:Isee.(Halfanhourlater)Daniel:Millie,here’s(7)____bridge.Whatcanyouseeacrossit?Millie:Oh,(8)____elephantisstandingoverthere.Daniel:Let’sgoacross(9)____bridgeandsee(10)____elephant.aanthethe在必要的地方用a,an,the填空。1.WhereisPeter?Heisn’tat___school.2.Thereis___orangeinthefridge.3.____pencilonthedeskbelongstoSandy.4.Ihave__newbike.Iclean___bikeeveryday.anTheathe×5.Dadoftengoesfishingin____summer.6.A:CanIhelpyou?B:I’mlookingfor___pairofshoes.7.PeopleinNanjingnowgot...
